气温上升有利于抑制防御的食草动物
Jéssica Teodoro-Paulo1,2,3, Jacques A Deere2, João Valeriano-Santos1,2,3,4
1Centre for Ecology, Evolution and Environmental Changes and Global Change and Sustainability Institute (cE3c - CHANGE), Faculty of Sciences, University of Lisbon, Lisbon, Portugal.
Journal of pest science
|March 24, 2025
概括
气温上升有利于蜘蛛抑制植物防御,加速害虫爆发. 这项研究表明,较高的温度会导致更多的植物损伤,有利于抑制防御的虫,增加害虫的形成.
科学领域:
- 生态生态学 生态生态学
- 气候变化生物学 气候变化生物学
- 昆虫学 昆虫学是一门学科.
背景情况:
- 气候变化正在增加全球气温,可能加速关节动物草食动物的生命周期,并加剧害虫疫情.
- 蜘蛛 (Tetranychus urticae) 是重要的农业害虫,在温暖的条件下壮成长,可以适应植物的防御.
- 气温上升对蜘蛛适应植物防御抑制的影响尚不清楚.
研究的目的:
- 为了研究高温对蜘蛛和番茄植物之间的相互作用的影响.
- 确定气温上升如何影响蜘蛛适应植物防御机制.
- 预测温度对蜘蛛虫种群动态和害虫形成的影响.
主要方法:
- 在两个温度下对蜘蛛与番茄的相互作用进行实验研究:25°C和32°C.
- 评估与植物防御有关的植物损害和基因表达.
- 在不同温度调节下对不同蜘蛛菌株的种群模型进行参数化.
主要成果:
- 所有的蜘蛛菌株在32°C的温度下,与25°C相比,会增加植物损害.
- 虽然生育能力在更高的温度下增加,但生存率下降,特别是诱导植物防御的虫.
- 种群模型表明,抑制防御的菌株可能会在高温下超过诱导防御的菌株,特别是在热浪期间.
结论:
- 较高的温度有利于蜘蛛菌株抑制植物防御,从而加速害虫的发展.
- 气候变化驱动的变暖可能会促进防御抑制的扩散,增加农业严重害虫损害的风险.
- 了解这些取决于温度的相互作用对于预测和管理未来的害虫爆发至关重要.
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